Methods and systems for manfucaturing a rear projection screen and a setup for displaying a simulated 3d hologram

ABSTRACT

A method and structure for displaying a simulated 3D image which may be projected utilizing front projectors and two screens, where the front screen may be a rear-projecting screen with a linear polarization film attached and a background screen which may contain a further image which varies in a programmed manner in keeping with the actions being portrayed by images on the front screen.

TECHNICAL FIELD

This invention relates to projection apparatus, and in particular theinvention relates to a projection apparatus which is used in a manner sothat a viewer will see a video presentation which comprises a simulatedthree dimensional (3D) image. In detail, the 3D video may be projectedutilizing a front projector and two screens, where the front screen maybe a rear-projecting screen and a background screen which may contain afurther image which varies in a programmed manner in keeping with theactions being portrayed by images on the front screen.

BACKGROUND

The present disclosure finds its genesis in a theatrical illusion whichis widely known as “Pepper's ghost”. In this illusion, a viewer is madeto believe that he is seeing an article which does not, in fact, existin the setting or circumstances being viewed. The techniques involved inpresenting Pepper's ghost are described hereafter. However, for now, abrief description and history of Peppers ghost is provided.

In order for the classical Peppers ghost illusion to work properly, theviewer must see clearly into a main setting, but not see into a hiddenroom. Unknown to the viewer, the viewer is also viewing the main settingthrough an angled piece of glass which, because of its placement, may beboth translucent and reflective. By changing the lighting in the hiddenroom, the viewer may view a reflection of the lit contents of the hiddenroom, on the glass panel. Thus, the illusion is controlled by itsillumination, and will appear and disappear when the lighting of theobject, person, or the like, is turned on or off, respectively. As aresult, an object or person which is reflected in the “mirror” sectionof the glass (e.g. the reflective surface of the glass) may seem toappear or disappear, or change into another object. While this illusionis over 100 years old, the same effect has been employed since at leastthe 1960's in certain modern theme parks, where objects such asreflected animated props may create the appearance of translucent“ghosts” which appear to be moving through a particular setting andinteracting with props in that physical particular setting. Moreover,the images appear to be three dimensional and demonstrate a parallaxeffect with respect to other items on the stage.

Typically, in recent applications, a polymeric film, drawn tight withina metal frame, is used to replace the glass panel, and a projectiondevice is used to create the image to be displayed on the polymericfilm. As an example, U.S. Pat. No. 8,172,400 (O'Connell et al.)describes a projection apparatus which requires a first projectiondevice that is arranged to generate a virtual three dimensional objectby projection of the image onto to a reflected/translucent polymer film.A second projection device projects a background image; and a lightsource projects light onto the virtual three dimensional image. A stagearrangement may also be provided, which is placed behind the screen,upon which a presenter or actor, or a prop, or both, may be located, inorder that the presenter or prop, interact with the virtual image.

In more recent applications, such as those described in US Patentpublication No. US 2013/0300728 (Reichow et al.), the polymeric film orglass panel showing the reflection is replaced by a transparent frontdisplay device, such as an transparent LCD display device. In thisapproach, the reflective surface with its projected image, is no longerrequired since the virtual image may be displayed directly on thetransparent front display. A background display device is positionedvisually behind the transparent front display, and a background image isshown or projected directly on the background display device. The imagesshown on the background display device may be coordinated with theimages on the transparent front display in order to create an apparentparallax effect which provides images which are similar to images fromthe Pepper's Ghost technique.

However, unless a visual “ghost” effect is desired, it has typicallybeen necessary to employ a black background surface behind the virtualimage so as to avoid any background image showing through the virtualimage. This is because if the viewer were to see the background imagethrough the front image, it would destroy the “holographic” effect ofthe virtual image.

In scenarios where a front projector with two screens (a rear-projectingscreen and a background blank screen) are used, use of a front projectorto generate an image on the rear-projecting screen (front screen) isproblematic to the audience's viewing experience because of spill, thatis, light is projected beyond the screen surface to other surfaces inthe viewing environment. Spill creates a distraction to the audienceaway from the front screen and contributes to ambient light levels inthe room. The increased light and the distraction of spill negativelyimpacts the audience's suspension of disbelief as they see part or allof the projected image on other surfaces as well as the actual screen,thereby negating the impact, believability of the interactive,hologramic experience.

As such, it would be beneficial to provide a newly designed andmanufactured rear-projecting screen setup described herein, wherein thescreen apparatus is capable of dealing with the issue of spill. Thepresent inventors have unexpectedly discovered that the at least some ofthese benefits may be provided by utilizing a novel arraignment,comprising a novel rear-projecting screen, which may be utilized to viewholograms by a plurality of viewers, in normal ambient lightingconditions.

SUMMARY

An object of the invention is to provide new and improved methods andsystems for generating and utilizing a rear-projection screen with apolarized film attached for displaying simulated 3D display images. Thefollowing presents a simplified summary of exemplary embodiments of thepresent disclosure in order to provide a basic understanding of someaspects described herein. This summary is not an extensive overview ofthe claimed subject matter. It is intended to neither identify key norcritical elements of the claimed subject matter nor delineate the scopeof the subject innovation. Its sole purpose is to present some conceptsof the claimed subject matter.

In an exemplary embodiment, a method for displaying a simulated 3D imageto an audience. The method may comprise attaching a first linearpolarization lens with an east-west polarization to a first frontprojector and attaching a second linear polarization lens with anorth-south polarization to a second front projector. The method mayfurther comprise creating a front screen, which is a rear-projectingscreen, wherein the creating the front screen comprises, hanging astretched out gauze vertically, applying at least a first fire resistantcoating on the stretched out gauze and drying the first fire resistantcoating, applying, using spray application, three semi-translucentdiffusing coatings, wherein each of the three semi translucent diffusingcoatings are applied at intervals of thirty minutes, and applying atleast a second first resistant coating on the three semi-translucentdiffusing coatings. The method may further include attaching a polarizedfilm with a north-south polarization to the front screen, wherein thepolarized film is the same size as the front screen, and placing abackground screen directly behind the front screen, projecting firstimage data using the first front projector and projecting second imagedata using the second front projector, wherein interrelation of thefirst data and the second data image leads to an apparent parallaxeffect and display of a simulated 3D image.

In another exemplary embodiment, a simulated three-dimensional displaydevice, for displaying a hologram is disclosed. The display device maycomprise a first linear polarization lens with an east-west polarizationattached to a first front projector, a second linear polarization lenswith a north-south polarization attached to a second front projector, afront screen, which is a rear-projecting screen, attached to a polarizedfilm with a north-south polarization, where front screen includes astretched out gauze vertically, a first fire resistant coating directlyon the stretched out gauze, three semi-translucent diffusing coatings,and a second first resistant coating on the three semi-translucentdiffusing coatings, and a background screen directly behind the frontscreen, where the first front projector is configured to project firstimage data and the second front projector is configured to projectsecond image data, wherein interrelation of the first data and thesecond data image leads to an apparent parallax effect and display of asimulated 3D image.

This Summary is provided to introduce a selection of concepts in asimplified form; these concepts are further described below in theDetailed Description. This Summary is not intended to identify keyfeatures or essential features of the claimed subject matter, nor is itintended to be used to limit the scope of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

The novel features which are believed to be characteristic of thepresent invention, as to its structure, organization, use and method ofoperation, together with further objectives and advantages thereof, willbe better understood from the following drawings in which a presentlypreferred embodiment of the present disclosure will now be illustratedby way of example. It is expressly understood, however, that thedrawings are for the purpose of illustration and description only andare not intended as a definition of the limits of the presentdisclosure. Embodiments of the present disclosure will now be describedby way of example in association with the accompanying drawings inwhich:

FIG. 1 is a sketch showing the general layout and functioning principlesof a prior art Pepper's Ghost installation;

FIG. 2 displays an exemplary environment where a front projector placedfrom the perspective of an audience and a rear projection screen as afront screen are utilized, consistent with exemplary embodiments of thepresent disclosure;

FIG. 3 displays an exemplary scenario, utilizing two projectors eachwith polarization lens attached places next to each other, consistentwith exemplary embodiments of the present disclosure;

FIG. 4 displays a detailed view of rear projection screen (frontscreen), consistent with exemplary embodiments of the presentdisclosure;

FIG. 5 illustrates an exemplary method for displaying a simulated 3Dimage to an audience, consistent with exemplar embodiments of thepresent disclosure; and

FIG. 6 illustrates an exemplary method for creating a front screen whichis a rear-projecting screen, consistent with exemplary embodiments ofthe present disclosure.

DETAILED DESCRIPTION

The novel features which are believed to be characteristic of thepresent invention, as to its structure, organization, use and method ofoperation, together with further objectives and advantages thereof, willbe better understood from the following discussion.

As a preliminary matter, some of the figures describe concepts in thecontext of one or more structural components, variously referred to asfunctionality, modules, features, elements, etc. The various componentsshown in the figures can be implemented in any manner, for example, bysoftware, hardware (e.g., discrete logic components, etc.), firmware,and so on, or any combination of these implementations. In oneembodiment, the various components may reflect the use of correspondingcomponents in an actual implementation. In other embodiments, any singlecomponent illustrated in the figures may be implemented by a number ofactual components. The depiction of any two or more separate componentsin the figures may reflect different functions performed by a singleactual component. The figures discussed below provide details regardingexemplary systems that may be used to implement the disclosed functions.

Some concepts are described in form of steps of a process or method. Inthis form, certain operations are described as being performed in acertain order. Such implementations are exemplary and non-limiting.Certain operations described herein can be grouped together andperformed in a single operation, certain operations can be broken apartinto plural component operations, and certain operations can beperformed in an order that differs from that which is described herein,including a parallel manner of performing the operations. The operationscan be implemented by software, hardware, firmware, manual processing,and the like, or any combination of these implementations. As usedherein, hardware may include computer systems, discrete logiccomponents, such as application specific integrated circuits (ASICs) andthe like, as well as any combinations thereof.

As to terminology, the phrase “configured to” encompasses any way thatany kind of functionality can be constructed to perform an identifiedoperation. The functionality can be configured to perform an operationusing, for instance, software, hardware, firmware and the like, or anycombinations thereof.

As utilized herein, terms “component,” “system,” “client” and the likeare intended to refer to a computer-related entity, either hardware,software (e.g., in execution), and/or firmware, or a combinationthereof. For example, a component can be a process running on aprocessor, an object, an executable, a program, a function, a library, asubroutine, and/or a computer or a combination of software and hardware.

By way of illustration, both an application running on a server and theserver can be a component. One or more components can reside within aprocess and a component can be localized on one computer and/ordistributed between two or more computers. The term “processor” isgenerally understood to refer to a hardware component, such as aprocessing unit of a computer system.

Furthermore, the claimed subject matter may be implemented as a method,apparatus, or article of manufacture using standard programming and/orengineering techniques to produce software, firmware, hardware, or anycombination thereof to control a computer to implement the disclosedsubject matter. The term “article of manufacture” as used herein isintended to encompass a computer program accessible from anynon-transitory computer-readable device, or media.

Non-transitory computer-readable storage media can include but are notlimited to magnetic storage devices (e.g., hard disk, floppy disk, andmagnetic strips, among others), optical disks (e.g., compact disk (CD),and digital versatile disk (DVD), among others), smart cards, and flashmemory devices (e.g., card, stick, and key drive, among others). Incontrast, computer-readable media generally (i.e., not necessarilystorage media) may additionally include communication media such astransmission media for wireless signals and the like.

Although the subject matter has been described in language specific tostructural features and/or methodological acts, it is to be understoodthat the subject matter defined in the appended claims is notnecessarily limited to the specific features or acts described above.Rather, the specific features and acts described above are disclosed asexample forms of implementing the claims.

It may be understood that when used herein, the term “the threedimensional (3D) image” or “3D image” may be an actual 3D image or maybe an illusion of a 3D image that is created based on generation anddisplay of a two-dimensional (2D) image. The illusion may be created bycreating a parallax effect between a front screen and a backgroundscreen. The display content between the front screen and back screen maybe synchronized. When viewing the illusion of the 2D image with theparallax effect, a viewer may experience that a 3D image is beingdisplayed between the two screens.

FIG. 1 is a sketch showing a classic arrangement by which the Pepper'sghost illusion was exhibited starting in the last half of the 19thcentury. A stage, typically a proscenium stage, is shown at 12 in FIG.1, and has a proscenium 14. It will be seen that the left hand side ofthe stage is open; that is, there is no wall, wing drapery, or the like.However, a viewer looking at the stage 12 in the direction of arrow 16sees nothing of the apparatus and setup at the left-hand side of thestage 18. Moreover, all of the structure at the left-hand side of thestage, commonly referred to as a Blue Room 18 (although it is usuallyblack), is kept dark. That is, there is no illumination in the blue room18, and the stage 20 is typically brightly lit. A glass panel 22 is setat an angle to the viewing direction 16. Whatever is behind the glass 22is clearly seen by the viewer.

Under normal lightly conditions, there is no reflection seen on thefront face of the glass 22 from the setting in the blue room 18.

Objects 24 and 26 are placed in the blue room 18. When illumination isturned on in blue room 18, a reflection of what is in the blue room 18is seen in the glass 22, but appears to provide a virtual image 24A and26A, which can be seen by the viewer. When the lighting in the blue room18 is discontinued, the images 24A and 26A, appear to disappear.

The present system is a variation of the Pepper's Ghost illusion whereina front image is provided on a front screen, and can be made to beinterrelated to images appearing on a background screen. This createsparallax in the system, which provides a simulated 3D effect. Thepresent system utilizes a novel method of manufacturing the frontscreen, which is a rear projection screen, along with a method ofprojecting image data which leads to a cheaper and more efficient way todisplay simulated 3D images. The rear projection screen is manufacturedas explained below in the explanation provided for FIG. 4. Exemplaryembodiments of the present disclosure also use polarized lens and apolarized film as described below with respect to FIGS. 2 and 3 toprovide this unique and novel setup which creates better image qualityand eliminates spill.

FIG. 2 displays an exemplary environment where a front projector isplaced from a perspective of an exemplary audience and a rear projectionscreen as a front screen are utilized, consistent with exemplaryembodiments of the present disclosure. Specifically, FIG. 2 displaysenvironment 200 that includes projector 202 with projection lens 204. Inan exemplary embodiment, a video image may be projected by projector202. Project 202 may be mounted or placed in front of an exemplarydisplay screen or screens on the audience side of a venue, room orlocation. Linear polarization lens 206 may be placed in front ofprojection lens 204 through which any images would be projected onto anexemplary screen. In exemplary embodiments, linear polarization lens 206may have a x-axis orientation, that is, it may have an east-westpolarization. Therefore, any video or image data passed through linearpolarization lens 206 will have any image data along the y-axis removedfrom it. In exemplary embodiments, linear polarization lens 206 maycomprise of glass or acrylic. Linear polarization lens 206 may beattached to projector 202 and/or lens 204 using an exemplary mount (notillustrated). The mount may be attached in a manner that the lens arerotatable in order to change the alignment of the linear polarizationaxis relative to the rear projection screen 210 (front screen) and thelinear polarized film 212 behind the front screen. In exemplaryembodiments, the mount may also be used to adjust a distance betweenlinear polarization lens 206 and lens 204 of projector 202. In anexemplary embodiment, to determine a minimum distance between linearpolarization lens 206 and lens 204 so that the heat generated by theprojector image does not damage linear polarization lens. Accordingly,first a minimum size in inches of exemplary linear polarization lens 206may be calculated using the following formula (The square root of the(projector lumens divided by 145). For example, a 14,500 lumen projectorwould require a 10″×10″ lens (14,500 divided by 145=100; the square rootof 100 is 10). In exemplary embodiments, linear polarization lens may bemounts on to lens 204. In this example, linear polarization lens 206 maybe placed at a maximum distance from the projector such that the entireprojected image is projected through the polarized lens. That is to saythat no part of a projected image bleeds beyond linear polarization lens206, in which case parts of the projected image would not be polarized.

In other embodiments, linear polarization lens 206 are mounted on custombuilt aluminium frame which allows the lens to be rotated to optimizethe polarization effect lens without being directly attached toprojector 202 or lens 204.

Any images from projector 202 may be displayed on rear projection screen210 to which is attached linear polarized film 1412. Accordingly, inexemplary embodiments, a video image/light exits the polarization lens206 with the light eliminated on one axis (the y-axis) leading for theimage to remain intact and undistorted as it hits rear projection screen210.

In exemplary embodiments, rear projection screen 210 may be a nylontulle material that is treated with fire retardant, an opticaloptimizing paint and finally a second application of fire retardant, asexplained below in further detail with respect to FIG. 4. Rearprojection screen 210 reflects the image back to the audience and alsoallows transmission of the video image through the surface. Thistransmitted polarized image/light is then transmitted to linearpolarized film 212 behind rear projection screen 210. In exemplaryembodiments, polarized film 212 may have a y-axis orientation, that is,it may have a north-south polarization. Accordingly, linear polarizedfilm 212 is constructed and oriented such that the axis of polarizationis 90 degrees to the polarization orientation of linear polarized lens206 mounted on projector 202. Stand 216 may hold up rear projectionscreen 210 with polarized film 212. Polarized film 212 may be the samesize as rear projection screen 210. In embodiments, polarized film 212is tensioned on stand 214 to create a smooth, flat surface, which isparallel to rear projection screen 210 (front screen). Therefore, whenlight or the video image that has passed through linear polarizationlens 206 and rear projection screen 210 hits polarized film 212, it ispolarized on the remaining axis thus eliminating any light exiting thepolarized film and thereby solving the issue of spill. Specifically, anyimage/light or video data projected by projector 202 through linearpolarization lens 206 has only allows image data along the x-axis topass through become of the polarization orientation of linearpolarization lens 206. Subsequently, due to the y-axis polarizationorientation of polarized film 212, the remaining image data along thex-axis is blocked from being passed through preventing spill.

Stand 218 may hold up rear projection plane 214. In exemplaryembodiments, rear projection plane 214 may be drapery, a screen, or anyother similar surface. In exemplary embodiments, a rear projector (notillustrated) may also be placed between rear projection screen 210 andrear projection plane to project a video image to be displayed on rearprojection plane 214. Rear projection plane 214 may reflect the imagefrom the second projector (not illustrated) back through the rearprojection screen 210 and polarized film 212. Although one axis of light(x-axis orientation) is eliminated from the rear projection screen 210due to the exemplary combination of rear projection screen 210 andpolarized film 212 (y-axis polarization orientation), the videoimage/light on rear projection plane 214 may still be visible to theaudience. That is because polarized film has a north-south polarization,image data from rear projection plane 214 on one of the axis may betransmitted back through rear projection screen 210 and polarized film212 to be visible to an audience. Accordingly, a first set of imagesfrom rear projection screen 210 and a second set of images on rearprojection plane 214 may be displayed to an audience. In exemplaryembodiments, rear projection plane 214 may extend beyond rear projectionscreen 210. The size may be dependent based on an audience cone whichincludes audience viewing angle, distance between rear projection screen210 and rear projection plane 214, and geometry of a venue.

In an exemplary embodiment, first program material is projected by afirst projector to be displayed on exemplary front screen (rearprojection screen 210) and second program material are projected by asecond projector to be displayed on exemplar back screen (rearprojection plane). The first program material and the second programmaterial may be edited and synchronized one with the other so that theimages from the back screen appear to be interrelated to, or merge into,the program material on the front screen, and thus provide a simulated3D viewing experience.

It will be noted that the images of the first program material and theimages of the second program material may be independent. However, inkeeping with the present invention, preferably the images of the firstprogram material and the images of the second program material aresynchronized. Typically, synchronization of the first program materialand the second material is preferably under the control of a computer,or some other computerized device. Synchronization of the images movingfrom display device to display device, may be provided by thisarrangement.

The apparatus of the present invention is preferably arranged so thatimages from the first program material and/or the second programmaterial are altered or edited, in such a manner so that any chosenimage from first program material displayed on the front screen, willcreate an image which will appear to be aligned with an area of thesecond program material presented on the back screen. In a preferredarrangement, the first program material will appear to be superimposed,or in front of, the edited second program material on the back screen.In one arrangement, the second program material may be altered so thatno image is provided in the area behind the image provided in the firstprogram material. As such, the first program material image is providedwithout any image from the second program material being superimposedon, or under, the first program image.

Still further, the editing and placement of the first program materialimage and the edited area of the second program material image are suchthat the chosen image of the first program material and the edited areaof the second program material may be made to move in any direction,relative one to the other, from frame to frame of the virtual image andthe second program material image. As such, the directions of movementfrom frame to frame of the virtual image, and the edited area of thesecond program material image can be in opposite directions, so as toprovide an enhanced illusion of movement one with respect to the other.

FIG. 3 displays an exemplary scenario, utilizing two projectors eachwith polarization lens attached places next to each other, consistentwith exemplary embodiments of the present disclosure. Specifically,environment 300 contains all the elements of environment 200 of FIG. 2and also includes a second rear projector 302 with lens 304 is placednext to projector 202. The second rear projector 302 may be utilized toproject videos or image data to be displayed on rear projection plane214. A linear polarization lens 306 may be attached to projector 302,analogously to how linear polarization lens 206 may be attached toprojector 202, with similar ability to vary angles. Linear polarizationlens 306 may have a y-axis orientation, that is, it may have anorth-south polarization. Accordingly, since linear polarization lens306 and polarization screen 212 have the same orientation, video imagedata from projector 306 would pass along on one axis, the north-southaxis, to rear projection screen 214 and reflect back to an exemplaryaudience. Therefore, first program material may be displayed on rearprojection screen 210 and second program material may be displayed onrear projection plane 214, displaying a simulated 3D image as discussedabove.

FIG. 4 displays a detailed view of the front screen 210 (rear projectionscreen), consistent with exemplary embodiments of the presentdisclosure. Gauze 404 may contain border 402. Border 402 may comprise ofa velcro attachment strip around the entire border of gauze 404. Border402 may be utilized for mounting and tensioning front screen 210. Theillustrations 406, 408 and 410 are all liquid applications applied tothe gauze with a spray gun. Each layer is applied sequentially after theprevious layer has dried and cured. Specifically, when utilized, frontscreen 210 should be stretched out flat for most efficient performance.On gauze 404, fire resistant 406 may be applied using spray application.Then coating 408 may be applied behind fire resistant 406. Coating 408may be a semi-translucent diffusing coating. Coating 408 may have agloss of 15, an ideal spreading rate of 302.4 sq ft/gal, with arecommended film thickness of 1.5 Mils Wet and 0.50 Mils Dry. Inexemplary embodiments, before application of fire resistant 306 orcoating 408, gauze 404 (or a similar fabric) is suspended from theceiling and pulled tight so it has no wrinkles in it. For coating 408, athin coat may be applied three times with about half an hour allottedbetween coats to allow for it to dry. In exemplary embodiments, threecoats create the ideal combination of transparency and signalpenetration-less than two coats leads to negative impact on videoappearance by making it looked soft while any additional coating, thereis impact on the quality of viewing any images on any back screen orplane. In exemplary embodiments, coating 308 may also be applied usingspray application. In such a scenario, an exemplary spray gun may be setto allow a high amount of air to into the mixture creating a misting ofcoating 308 onto gauze 404. In such application, the exemplary spray gunmay be used to spray at an angle and not at a ninety degrees orperpendicular angle to gauze 404. Coating 408 may be applied by using asweeping motion, with the exemplary spray gun positioned about 0.75 to1.25 feet away from gauze 404 first in a horizontal direction and thenin the vertical direction. In an exemplary embodiment, first coating 406may be applied followed by coating 408 that may be a semi-translucentdiffusing coating, followed by final coating 410 of fire retardant. Eachapplication of coatings 406, 408 and 410 require a minimum of 3 hours todry. Another layer of fire resistant 410 may be applied behind coating408 using spray application. In embodiments, fire resistant 410 may besimilar to fire resistant 306.

FIG. 5 illustrates an exemplary method for displaying a simulated 3Dimage to an audience, consistent with exemplar embodiments of thepresent disclosure.

Method 500 may include one or more steps as described above with regardsto the description of FIGS. 2 through 5. In detail, step 502 maycomprise attaching a first linear polarization lens with an east-westpolarization to a first front projector. For example, linearpolarization lens 206 may be attached to project 202.

Step 504, may comprise 504 attaching a second linear polarization lenswith a north-south polarization to a second front projector. Forexample, linear polarization lens 306 may be attached to project 302.

In exemplary embodiments, respective linear polarizations lens 206 and306 may simply be placed in front of respective projectors 202 and 30using stand-alone stands.

Step 506 may comprise of creating a front screen, which is arear-projecting screen. FIG. 6 illustrates an exemplary method forcreating a front screen which is a rear projection screen, consistentwith exemplary embodiments of the present disclosure. Therefore, step506, may comprise of a first step 602 which comprises hanging astretched out gauze vertically. Step 604 may comprise of applying atleast a first fire resistant coating on the stretched out gauze anddrying the first fire resistant coatings. Step 606 may comprise ofapplying, using spray application, three semi-translucent diffusingcoatings, wherein each of the three semi translucent diffusing coatingsare applied at intervals of thirty minutes. Step 608 may comprise ofapplying at least a second first resistant coating on the threesemi-translucent diffusing coatings.

Step 508 may comprise of attaching a polarized film with a north-southpolarization to the front screen, wherein the polarized film is the samesize as the front screen. For example, polarized film 212 may beattached to rear projecting screen 210.

Step 510 may comprise of placing a background screen directly behind thefront screen. For example, rear projection plane 214 may be placedbehind an exemplary front screen.

Step 512 may comprise of projecting first image data using the firstfront projector and projecting second image data using the second frontprojector, wherein interrelation of the first data and the second dataimage leads to an apparent parallax effect and display of a simulated 3Dimage. Other modifications and alterations may be used in the design andmanufacture of the apparatus of the present invention without departingfrom the spirit and scope of the accompanying claims.

Throughout this specification and the claims which follow, unless thecontext requires otherwise, the word “comprise”, and variations such as“comprises” or “comprising”, will be understood to imply the inclusionof a stated integer or step or group of integers or steps but not to theexclusion of any other integer or step or group of integers or steps.

Moreover, the word “substantially” when used with an adjective or adverbis intended to enhance the scope of the particular characteristic; e.g.,substantially planar is intended to mean planar, nearly planar and/orexhibiting characteristics associated with a planar element. Further useof relative terms such as “vertical”, “horizontal”, “up”, “down”, and“side-to-side” are used in a relative sense to the normal orientation ofthe apparatus.

1-9. (canceled)
 10. A method for displaying a simulated 3D image,comprising: attaching a first linear polarization lens with an east-westpolarization to a first front projector; creating a front screen, whichis a rear-projecting screen, wherein the creating the front screencomprises: hanging a stretched out gauze vertically; and applying threesemi-translucent diffusing coatings at regular intervals in between atleast two layers of first fire resistant coating applied on thestretched out gauze; attaching a polarized film with a north-southpolarization to the front screen, wherein the polarized film is the samesize as the front screen; placing a background screen directly behindthe front screen; projecting first image data using the first frontprojector and projecting second image data using a second frontprojector, wherein interrelation of the first data and the second dataimage leads to an apparent parallax effect and display of a simulated 3Dimage.
 11. The method of claim 10, wherein applying threesemi-translucent diffusing coatings at regular intervals in between atleast two layers of first fire resistant coating applied on thestretched out gauze comprises: applying at least a first fire resistantcoating on the stretched out gauze and drying the first fire resistantcoating; applying, using spray application, three semi-translucentdiffusing coatings, wherein each of the three semi translucent diffusingcoatings are applied at fixed intervals; and applying at least a secondfirst resistant coating on the three semi-translucent diffusingcoatings.
 12. The method of claim 11, further comprising: removing imagedata in a y-axis orientation from the first image data using the firstpolarization lens.
 13. The method of claim 12, further comprising:removing remaining image data of the first image data in an x-axisorientation using the polarized film.
 14. The method of claim 13,further comprising: attaching a second linear polarization lens with anorth-south polarization to the second front projector;
 15. The methodof claim 14, further comprising: removing image data of the second imagedata in an x-axis orientation using the second polarized lens.
 16. Themethod of claim 15, further comprising: reflecting back remaining imagedata of the second image data from the rear projection screen.
 17. Themethod of claim 16, wherein the second front projector is placed next tothe front screen.
 18. The method of claim 11, wherein the rearprojection screen is arranged to display a first image of a firstprogram material which is to be observed by an audience viewer, and therear projection plane is arranged to display a second image of a secondprogram material which is to be observed by a viewer, wherein the rearprojection screen and the rear projection plane are separated to providethe apparent parallax effect between the first image and the secondimage.
 19. The method of claim 18, wherein the first program materialand the second program material are edited and synchronized one with theother so that the images from the background display device appear to beinterrelated to, or merge into, the program material on the frontdisplay device, and thus provide a simulated 3D viewing experience. 20.A simulated three-dimensional display device, comprising: a first linearpolarization lens with an east-west polarization attached to a firstfront projector; a front screen, which is a rear-projecting screen,attached to a polarized film with a north-south polarization, where thefront screen includes a stretched out gauze vertically and threesemi-translucent diffusing coatings between at least two first resistantcoatings; and a background screen directly behind the front screen,wherein the first front projector is configured to project first imagedata and a second front projector is configured to project second imagedata, wherein interrelation of the first data and the second data imageleads to an apparent parallax effect and display of a simulated 3Dimage.
 21. The three-dimensional display device of claim 20, wherein thethree semi-translucent diffusing coatings between at least two firstresistant coatings comprises a first fire resistant coating directly onthe stretched out gauze, three semi-translucent diffusing coatings, anda second fire resistant coating on the three semi-translucent diffusingcoatings.
 22. The three-dimensional display device of claim 21, furthercomprising: a second linear polarization lens with a north-southpolarization attached to a second front projector;
 23. Thethree-dimensional display device of claim 22, wherein: the first linearpolarization lens is configured to eliminate image data in a y-axisdirection from the first image data; and the second linear polarizationlens is configured to eliminate image data in a x-axis direction fromthe second image data.